59.11.1.1

\begin{equation} \label{etale-cohomology-equation-sheaf-axiom} \xymatrix{ \mathcal{F}(U) \ar[r] & \prod _{i\in I} \mathcal{F}(U_ i) \ar@<1ex>[r] \ar@<-1ex>[r] & \prod _{i, j \in I} \mathcal{F}(U_ i \times _ U U_ j), } \end{equation}

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